Chosen Solution

So basically i havent attempted this yet? Will replacing turtle void touch ID? thanks

No, U10/Turtle IC is strictly for the “click” function of the Home Button. However, you have to desolder/solder it on a flex cable so be careful not to damage the flex as you could then lose Touch ID.

So I have an IPhone 7 with original-Homebutton here, where I did a few Tigris/Tristar swappings till I got it back to work. It powers on normally now, but Homebutton shows zero reaction. Is this u10 ic just for the klicking or also for Touch ID? I saw videos changing it with a „special-tool“Can I also change it the normal way only with a heatgun?